Assembly device for parking cable

ABSTRACT

An assembly device for a parking cable may include: a driving cable part having one end connected to a driving unit; a braking cable part having one end connected to a braking unit; a first coupling part coupled to the other end of the driving cable part; and a second coupling part coupled to the other end of the braking cable part and screw-coupled to the first coupling part. A distance between the other end of the driving cable part and the other end of the braking cable part may be adjusted according to the extent to which the first and second coupling parts are screwed coupled to each other.

CROSS-REFERENCES TO RELATED APPLICATIONS

The present application claims priority to Korean application number10-2014-0071609, filed on Jun. 12, 2014, which is incorporated byreference in its entirety.

BACKGROUND

The present disclosure relates to an assembly device for a parkingcable, and more particularly, to an assembly device for a parkingdevice, which is capable of reducing volume by suppressing a strokeallowed for assembling a parking cable, and releasing a braking forceduring emergency.

Generally, in an electronic parking brake system, a motor is used tooperate a parking brake. An electric parking brake system is disclosedin Korean Patent Laid-open Publication No. 2011-0038290 published onApr. 14, 2011 and entitled “Locking Preventing Apparatus for ElectronicParking Brake”.

SUMMARY

Embodiments of the present invention are directed to an assembly devicefor a parking cable, which is capable of suppressing an invalid strokewhile improving the assembly of a parking cable, and releasing a brakingforce through a simple operation during emergency.

In one embodiment, an assembly device for a parking cable may include: adriving cable part having one end connected to a driving unit; a brakingcable part having one end connected to a braking unit; a first couplingpart coupled to the other end of the driving cable part; and a secondcoupling part coupled to the other end of the braking cable part andscrew-coupled to the first coupling part. A distance between the otherend of the driving cable part and the other end of the braking cablepart may be adjusted according to the extent to which the first andsecond coupling parts are screwed coupled to each other.

The first coupling part may include: a bolt body coupled to the drivingcable part and having a screw thread formed on the outer surfacethereof; and a bolt head formed on the bolt body so as to protrude in alateral direction, and having a polygonal shape.

The second coupling part may include: a parking locking part coupled tothe other end of the braking cable part; and a parking nut part to whichthe parking locking part is locked and fixed, and into which the firstcoupling part is inserted and screw-coupled, and a distance between theparking nut part and the driving cable part may be adjusted according tothe rotation direction of the parking nut part.

The assembly device may further include an anti-rotation part engagedwith the first coupling part and the parking nut part so as to restrictthe rotation of the parking nut part.

The anti-rotation part may have a releasing cable connected thereto.

The anti-rotation part may include: an anti-rotation cover through whichthe driving cable part is passed, and which is arranged to surround thefirst coupling part and the parking nut part; a cover groove which isformed on the inner surface of the anti-rotation cover, and into which abolt protrusion formed on the first coupling part is inserted to guidethe movement of the anti-rotation cover; and a cover hole which isformed at an end of the anti-rotation cover, and into which a nutprotrusion formed on the parking nut part is inserted.

The parking locking part may include: a locking body coupled to thebraking cable part and inserted into the parking nut part; and a lockinghead formed on the locking body so as to protrude in a lateraldirection, and locked to the inner surface of the parking nut part.

The parking nut part may include: a nut body through which the brakingcable is passed, of which the outside is formed in a polygonal shape,and of which the inside is screw-coupled to the first coupling part; anda locking protrusion protruding from the inner surface of the nut body,and locked to the locking head.

The second coupling part may include: a parking locking part coupled tothe other end of the braking cable part; a parking nut part to which theparking locking part is locked and fixed, and into which the firstcoupling part is inserted and screw-coupled, and a distance between theparking nut part and the driving cable part is adjusted according to therotation direction of the parking nut part.

The assembly device may further include an anti-rotation part engagedwith the first coupling part and the parking nut part so as to restrictthe rotation of the parking nut part.

The anti-rotation part may have a releasing cable connected thereto.

The anti-rotation part may include: an anti-rotation cover through whichthe driving cable part is passed, and which is arranged to surround thefirst coupling part and the parking nut part; a cover groove which isformed on the inner surface of the anti-rotation cover, and into which abolt protrusion formed on the first coupling part is inserted to guidethe movement of the anti-rotation cover; and a cover hole which isformed at an end of the anti-rotation cover, and into which a nutprotrusion formed on the parking nut part is inserted.

The cover groove may be formed in the longitudinal direction of theanti-rotation cover.

The nut protrusion may include: a protrusion body protruding from theparking nut part and inserted into the cover hole; and a protrusion headformed at an end of the protrusion body, and contacted with theanti-rotation cover.

The nut protrusion may be formed of an elastic material, and forced tobe inserted into the cover hole.

The anti-rotation cover, the cover groove, and the cover hole may beintegrated with each other.

The anti-rotation part may further include a cable fixing groove whichis concavely formed in the anti-rotation cover and to which thereleasing cable is coupled.

The releasing cable may be detachably coupled to the cable fixinggroove.

The parking locking part may include: a locking body coupled to thebraking cable part and inserted into the parking nut part; and a lockinghead formed on the locking part so as to protrude in a lateraldirection, and locked to the inner surface of the parking nut part.

The parking nut part may include: a nut body through which the brakingcable is passed, of which the outside is formed in a polygonal shape,and of which the inside is screw-coupled to the first coupling part; anda locking protrusion protruding from the inner surface of the nut body,and locked to the locking head.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 schematically illustrates a state before a parking cable isconnected to an assembly device for a parking cable in accordance withan embodiment of the present invention.

FIG. 2 schematically illustrates a state in which the parking cable isconnected to the assembly device for a parking cable in accordance withthe embodiment of the present invention.

FIG. 3 schematically illustrates a state in which the length of theparking cable of FIG. 2 is reduced to remove an invalid stroke.

FIG. 4 schematically illustrates a state in which an anti-rotation partis moved to restrict rotation of a parking nut part in FIG. 3.

FIG. 5 schematically illustrates a first coupling part in the assemblydevice for a parking cable in accordance with the embodiment of thepresent invention.

FIG. 6 schematically illustrates a parking locking part and a parkingnut part in the assembly device for a parking cable in accordance withthe embodiment of the present invention.

FIG. 7 is an A-A cross-sectional view of FIG. 6.

FIG. 8 schematically illustrates the anti-rotation part in the assemblydevice for a parking cable in accordance with the embodiment of thepresent invention.

FIG. 9 is a B-B cross-sectional view of FIG. 8.

FIG. 10 illustrates a state before a releasing cable is operated in theassembly device for a parking cable in accordance with the embodiment ofthe present invention.

FIG. 11 illustrates a state in which the anti-rotation part is moved bythe releasing cable in the assembly device for a parking cable inaccordance with the embodiment of the present invention.

FIG. 12 schematically illustrates a state in which a braking force isreleased in the assembly device for a parking cable in accordance withthe embodiment of the present invention.

DESCRIPTION OF SPECIFIC EMBODIMENTS

Hereinafter, an assembly device for a parking cable in accordance withan embodiment of the present invention will be described in detail withreference to the accompanying drawings. It should be noted that thedrawings are not to precise scale and may be exaggerated in thickness oflines or sizes of components for descriptive convenience and clarityonly. Furthermore, the terms as used herein are defined by takingfunctions of the invention into account and can be changed according tothe custom or intention of users or operators. Therefore, definition ofthe terms should be made according to the overall disclosures set forthherein.

Generally, in an electronic parking brake system, when a motor isrotated to generate a driving force, a decelerator performs boosting anddeceleration to rotate a screw, while a plurality of gears thereof arerotated. Then, a nut coupled to the screw is linearly moved to pull aparking cable such that a vehicle is parked.

One end of the parking cable is connected to the nut coupled to thescrew, and the other end of the parking cable is connected to a vehiclebrake system. The parking cable has an invalid stroke for smoothassembly of the parking cable.

However, since a space corresponding to the invalid stroke is requiredto assemble the parking cable, the volume of the module may beincreased. Furthermore, when the electronic parking brake system isdischarged or broken down, it is inconvenient to release the parkedstate during emergency.

FIG. 1 schematically illustrates a state before a parking cable isconnected to an assembly device for a parking cable in accordance withan embodiment of the present invention. FIG. 2 schematically illustratesa state in which the parking cable is connected to the assembly devicefor a parking cable in accordance with the embodiment of the presentinvention. FIG. 3 schematically illustrates a state in which the lengthof the parking cable of FIG. 2 is reduced to remove an invalid stroke.FIG. 4 schematically illustrates a state in which an anti-rotation partis moved to restrict rotation of a parking nut part in FIG. 3.

Referring to FIGS. 1 to 4, the assembly device 1 for a parking cable inaccordance with the embodiment of the present invention may include adriving cable part 10, a braking cable part 20, a first coupling part30, a second coupling part 40 and 50, and an anti-rotation part 60. Atthis time, the length (a) of the parking cable may indicate a lengthwhen all the components are coupled.

The driving cable part 10 may have one end connected to a driving unit100. When a parking brake (not illustrated) is operated, the drivingunit 100 may pull the driving cable part 10 through a manual or electricmotor.

The braking cable part 20 may have one end connected to a braking unit200. The braking unit 200 may correspond to a brake pad of a vehiclewheel. When the driving cable part 10 is moved by the driving unit 100,the braking cable part 20 may generate a braking force by closelyattaching the brake pad on the wheel.

The first coupling part 30 may be coupled to the other end of thedriving cable part 10. For example, the first coupling part 30 maysurround the other end of the driving cable part 10, and maintain theconnection state with the driving cable part 10 through a press fittingprocess.

The second coupling part 40 and 50 may be coupled to the other end ofthe braking cable part 20, and screw-coupled to the first coupling part30. Thus, according to the extent to which the first coupling part 30and the second coupling part 40 and 50 are screw-coupled to each other,the distance between the other end of the driving cable part 10 and theother end of the braking cable part 20 may be adjusted. When thedistance is adjusted, it may indicate that the length (a) of the parkingcable is adjusted. In the present embodiment, the second coupling part40 and 50 may include a parking locking part 40 and a parking nut part50.

The parking locking part 40 may be coupled to the other end of thebraking cable part 20. For example, the parking locking part 40 maysurround the other end of the braking cable part 20, and maintain theconnection state with the braking cable part 20 through a press fittingprocess.

The parking nut part 50 may have a tube shape through which the brakingcable part 20 is passed. The parking locking part 40 may be locked tothe inside of the parking nut part 50 such that the parking nut part 50maintains the connection state with the braking cable part 20. The firstcoupling part 30 may be inserted into the parking nut part 50 so as tobe screw-coupled to the parking nut part 50.

Thus, the distance between the parking nut part 50 and the other end ofthe driving cable part 10 may be adjusted according to the rotationdirection of the parking nut unit 50, in a state where the parking nutpart 50 and the first coupling part 30 are coupled to each other.Ultimately, the length (a) of the parking cable may be adjustedaccording to the rotation direction of the parking nut part 50.

The anti-rotation part 60 may be formed to surround the first couplingpart 30 and the parking nut part 50, and the outer surfaces of the firstcoupling part 30 and the parking nut part 50 may be engaged with theinner surface of the anti-rotation part 50 to restrict the rotation ofthe parking nut part 50.

The anti-rotation part 60 may have a releasing cable 70 connectedthereto. In the present embodiment, the releasing cable 70 may include ametallic material, and have one end coupled to the anti-rotation part 60and the other end positioned at a driver's seat or the like, such that adriver pulls the releasing cable 70 to release a parked state.

FIG. 5 schematically illustrates the first coupling part in the assemblydevice for a parking cable in accordance with the embodiment of thepresent invention.

Referring to FIG. 5, the first coupling part 30 in accordance with theembodiment of the present invention may include a bolt body 31 and abolt head 32.

The bolt body 31 may be coupled to the other end of the driving cablepart 10, and formed in a cylindrical shape. The bolt body 31 may have ascrew thread formed thereon so as to be coupled to the parking nut part50. The bolt head 32 may be formed on the bolt body 31 so as to protrudefrom the bolt body 31, and have a polygonal shape. Thus, although thebolt body 31 is inserted into the anti-rotation part 60, the bolt head32 may be engaged with the inner surface of the anti-rotation part 60.For example, the bolt head 32 may be formed at the left end of the boltbody 31 (based on FIG. 5).

FIG. 6 schematically illustrates the parking locking part and theparking nut part in the assembly device for a parking cable inaccordance with the embodiment of the present invention. FIG. 7 is anA-A cross-sectional view of FIG. 6.

Referring to FIGS. 6 and 7, the parking locking part 40 in accordancewith the embodiment of the present invention may include a locking body41 and a locking head 42, and the parking nut part 50 may include a nutbody 51 and a locking protrusion 52.

The locking body 41 may be coupled to the braking cable part 20, andinserted into the parking nut part 50. The locking head 42 may be formedon the locking body 41, and protrude from the locking body 41. Forexample, the locking head 42 may be formed at the left end of thelocking body 41 (based on FIG. 6).

The nut body 51 may have a tube shape through which the braking cablepart 20 is passed. The nut body 51 may have a polygonal shape so as tobe engaged with the inner surface of the anti-rotation part 60. The nutbody 51 may have a screw thread formed therein so as to be coupled tothe bolt body 31 of the first coupling part 30. The locking protrusion52 may protrude from the inner surface of the nut body 51 such that thelocking head 42 is locked to the locking protrusion 52. Thus, theparking nut part 50 and the parking locking part 40 may maintain theconnection state. For example, the locking protrusion 52 may be formedat the right end of the nut body 51 (based on FIG. 6).

FIG. 8 schematically illustrates the anti-rotation part in the assemblydevice for a parking cable in accordance with the embodiment of thepresent invention. FIG. 9 is a B-B cross-sectional view of FIG. 8.

Referring to FIGS. 8 and 9, the anti-rotation part 60 in accordance withthe embodiment of the present invention may include an anti-rotationcover 61, a cover groove 62, a cover hole 63, and a cable fixing groove65.

The anti-rotation cover 61 may have a tube shape through which thedriving cable part 10 is passed. The anti-rotation cover 61 may bearranged to surround the first coupling part 30 and the parking nut part50. For example, the bolt head 32 and the nut body 51 may be formed in apolygonal shape, and have the same outer diameter. Furthermore, theanti-rotation cover 61 may be formed in a polygonal shape correspondingto the outer surfaces of the bolt head 32 and the nut body 51, and havean outer diameter corresponding to the outer diameters of the bolt head32 and the nut body 51. Thus, since the first coupling part 30 and theparking nut part 50 are engaged with the inside of the anti-rotationcover 61, the rotations of the first coupling part 30 and the parkingnut part 50 may be restricted.

The cover groove 62 may be formed on the inner surface of theanti-rotation cover 61, and the bolt protrusion 33 formed on the firstcoupling part 30 may be inserted into the cover groove 62 so as to guidethe movement of the anti-rotation cover 61. That is, the cover groove 62formed in the longitudinal direction of the anti-rotation cover 61 maybe extended to the end of the anti-rotation cover 61, and the boltprotrusion 33 may be inserted into the cover groove 62 so as to suppressthe anti-rotation cover 61 from swaying, while the anti-rotation cover61 covers the first coupling part 30. When the bolt protrusion 33 islocked to an end of the cover groove 62, the movement of theanti-rotation cover 61 may be restricted.

The cover hole 63 may be formed at an end of the anti-rotation cover 61,and the nut protrusion 53 formed on the parking nut part 50 may beinserted into the cover hole 63. At this time, the cover groove 62 andthe cover hole 63 may be formed on a straight line or different lines.The nut protrusion 53 may be forced to be coupled to the cover hole 63.At this time, a plurality of nut protrusions 53 may be arranged tomaintain the connection state with the cover hole 63, or formed of anelastic material. For example, the nut protrusion 53 may include aprotrusion body 531 and a protrusion head 532. The protrusion body 531may protrude from the nut body 51 so as to be inserted into the coverhole 63, and the protrusion head 532 may be formed at an end of theprotrusion body 531 so as to be contacted with the anti-rotation cover61.

The cable fixing groove 65 may be formed in a hole shape passing throughthe anti-rotation cover 61, and one end of the releasing cable 70 may bedetachably connected to the cable fixing groove 65.

The operation principle and effect of the assembly device for a parkingcable in accordance with the embodiment of the present invention will bedescribed as follows.

The left end of the driving cable part 10 may be connected to thedriving unit 100, and the right end of the driving cable part 10 may beconnected to the first coupling part 30. The right end of the brakingcable unit 20 may be connected to the braking unit 200, and the left endof the parking cable unit 20 may be connected to the parking lockingpart 40. At this time, parking cable unit 20 may maintain the connectionstate with the parking locking part 40 through the parking nut part 50(refer to FIG. 1).

In the above-described state, the first coupling part 30 may be insertedinto the parking nut part 50 so as to be screw-coupled to the parkingnut part 50 (refer to FIG. 2). At this time, the parking nut part 50 maybe rotated to reduce the length (a) of the parking cable.

Then, an invalid stroke for assembling the parking cable may be removed(refer to FIG. 3).

When the first coupling part 30 and the parking nut part 50 arecompletely coupled, the anti-rotation part 60 through which the drivingcable part 10 is passed may be moved to surround the first coupling part30 and the parking nut part 50 (refer to FIG. 4). The anti-rotation part60 may be guided along the bolt protrusion 53, and coupled to the nutprotrusion 53 so as to restrict the rotations of the first coupling part30 and the parking nut part 50.

When the parking nut part 50 is rotated according to the design plan,the anti-rotation part 60 and the bolt protrusion 53 may be coupled toeach other. For example, when an operator rotates the parking nut part50 twice by mistake in a state where the parking nut part 50 is designedin such a manner that it is rotated three times to correct an invalidstroke, the parking nut part 50 may not reach the anti-rotation part 60.

Furthermore, when the operator rotates the parking nut part 50 fourtimes by mistake, the bolt protrusion 53 may not be locked to the end ofthe cover groove 62 of the anti-rotation part 60, and then moved in thelongitudinal direction. When such an assembling error occurs, theoperator may couple the anti-rotation part 60 and the bolt protrusion 53by adjusting the rotation direction and rotation number of the parkingnut part 50, and correct an invalid stroke according to the design plan.

FIG. 10 illustrates a state before the releasing cable is operated inthe assembly device for a parking cable in accordance with theembodiment of the present invention. FIG. 11 illustrates a state inwhich the anti-rotation part is moved by the releasing cable in theassembly device for a parking cable in accordance with the embodiment ofthe present invention. FIG. 12 schematically illustrates a state inwhich a braking force is released in the assembly device for a parkingcable in accordance with the embodiment of the present invention.

Referring to FIGS. 10 to 12, when the releasing cable 70 connected tothe anti-rotation part 60 is pulled in case where the vehicle isdischarged or the parking brake is broken down, the anti-rotation part60 may be separated from the first coupling part 30 and the parking nutpart 50.

An inner cable 300 positioned at the inside of the driving cable part 10and the braking cable part 20 may be pulled by the driving unit 100 in abraking state. Thus, a force to couple the first coupling part 30 andthe parking nut part 50 may be applied to the driving cable part 10 andthe braking cable part 20 by a reaction force to the force of thedriving unit 100 to pull the inner cable 300 in the braking state.

Thus, when the releasing cable 70 is pulled to move the anti-rotationpart 60 (refer to FIG. 11), the rotation restriction between the firstcoupling part 30 and the parking nut part 50 may be released, and thefirst coupling part 30 and the parking nut part 50 may be rotated andscrew-coupled to each other (refer to FIG. 12). Thus, the protrusion ofthe inner cable 300 may be increased (b0−>b1), and the force havingpulled the braking unit 200 may be reduced to release the braking force.

In the assembly device 1 for a parking cable in accordance with theembodiment of the present invention, the first coupling part 30connected to the driving cable part 10 and the parking nut part 50connected to the braking cable part 20 may be screw-assembled to adjustthe length (a) of the parking cable.

In particular, since the driving cable part 10 and the braking cablepart 20 are separated from each other, it is possible to improve theworkability of an operator who couples the driving cable part 10 to thedriving unit 100 or couples the driving cable part 20 to the brakingunit 200. Furthermore, an invalid stroke may be suppressed to reduce thevolume of the module.

In the assembly device 1 for a parking cable in accordance with theembodiment of the present invention, the anti-rotation part 60 may bearranged to surround the parking nut part 50 and the first coupling part30, thereby substantially preventing the rotations of the parking nutpart 50 and the first coupling part 30. Thus, it is possible tosubstantially prevent the first coupling part 30 and the parking nutpart 50 from being loosened by vibration and external impact of thevehicle.

In the assembly device 1 for a parking cable in accordance with theembodiment of the present invention, the rotation number of the parkingnut part 50 may be adjusted according to the design plan such that theparking nut part 50 and the anti-rotation part 60 are coupled to eachother. Thus, an invalid stroke may be corrected during an assemblyprocess. That is, an operator may adjust the length (a) of the parkingcable according to the design plan.

Since the releasing cable 70 is applied to the assembly device 1 for aparking cable in accordance with the embodiment of the presentinvention, the braking force of the parking brake may be releasedthrough a simple operation during emergency.

In the assembly device for a parking cable in accordance with theembodiment of the present invention, the first coupling part connectedto the driving cable part and the second coupling part connected to thebraking cable part may be screw-coupled to adjust the length of theparking cable.

Furthermore, the anti-rotation part may be arranged to surround theparking nut part and the first coupling part, and substantially preventthe rotations of the parking nut part and the first coupling part.

Furthermore, since the rotation number of the parking nut part isadjusted according to the rotation number of the parking nut part suchthat the parking nut part is coupled to the anti-rotation part, aninvalid stroke may be adjusted during an assembly process.

Furthermore, since the releasing cable is applied, the state of theparking cable may be released through a simple operation.

Although embodiments of the invention have been disclosed forillustrative purposes, those skilled in the art will appreciate thatvarious modifications, additions and substitutions are possible, withoutdeparting from the scope and spirit of the invention as defined in theaccompanying claims.

What is claimed is:
 1. An assembly device for a parking cable,comprising: a driving cable part having one end connected to a drivingunit; a braking cable part having one end connected to a braking unit; afirst coupling part coupled to the other end of the driving cable part;and a second coupling part coupled to the other end of the braking cablepart and screw-coupled to the first coupling part, wherein a distancebetween the other end of the driving cable part and the other end of thebraking cable part is adjusted according to the extent to which thefirst and second coupling parts are screwed coupled to each other. 2.The assembly device of claim 1, wherein the first coupling partcomprises: a bolt body coupled to the driving cable part and having ascrew thread formed on the outer surface thereof; and a bolt head formedon the bolt body so as to protrude in a lateral direction, and having apolygonal shape.
 3. The assembly device of claim 2, wherein the secondcoupling part comprises: a parking locking part coupled to the other endof the braking cable part; and a parking nut part to which the parkinglocking part is locked and fixed, and into which the first coupling partis inserted and screw-coupled, and a distance between the parking nutpart and the driving cable part is adjusted according to the rotationdirection of the parking nut part.
 4. The assembly device of claim 3,further comprising an anti-rotation part engaged with the first couplingpart and the parking nut part so as to restrict the rotation of theparking nut part.
 5. The assembly device of claim 4, wherein theanti-rotation part has a releasing cable connected thereto.
 6. Theassembly device of claim 5, wherein the anti-rotation part comprises: ananti-rotation cover through which the driving cable part is passed, andwhich is arranged to surround the first coupling part and the parkingnut part; a cover groove which is formed on the inner surface of theanti-rotation cover, and into which a bolt protrusion formed on thefirst coupling part is inserted to guide the movement of theanti-rotation cover; and a cover hole which is formed at an end of theanti-rotation cover, and into which a nut protrusion formed on theparking nut part is inserted.
 7. The assembly device of claim 3, whereinthe parking locking part comprises: a locking body coupled to thebraking cable part and inserted into the parking nut part; and a lockinghead formed on the locking body so as to protrude in a lateraldirection, and locked to the inner surface of the parking nut part. 8.The assembly device of claim 7, wherein the parking nut part comprises:a nut body through which the braking cable is passed, of which theoutside is formed in a polygonal shape, and of which the inside isscrew-coupled to the first coupling part; and a locking protrusionprotruding from the inner surface of the nut body, and locked to thelocking head.
 9. The assembly device of claim 1, wherein the secondcoupling part comprises: a parking locking part coupled to the other endof the braking cable part; a parking nut part to which the parkinglocking part is locked and fixed, and into which the first coupling partis inserted and screw-coupled, and a distance between the parking nutpart and the driving cable part is adjusted according to the rotationdirection of the parking nut part.
 10. The assembly device of claim 9,further comprising an anti-rotation part engaged with the first couplingpart and the parking nut part so as to restrict the rotation of theparking nut part.
 11. The assembly device of claim 10, wherein theanti-rotation part has a releasing cable connected thereto.
 12. Theassembly device of claim 11, wherein the anti-rotation part comprises:an anti-rotation cover through which the driving cable part is passed,and which is arranged to surround the first coupling part and theparking nut part; a cover groove which is formed on the inner surface ofthe anti-rotation cover, and into which a bolt protrusion formed on thefirst coupling part is inserted to guide the movement of theanti-rotation cover; and a cover hole which is formed at an end of theanti-rotation cover, and into which a nut protrusion formed on theparking nut part is inserted.
 13. The assembly device of claim 12,wherein the cover groove is formed in the longitudinal direction of theanti-rotation cover.
 14. The assembly device of claim 12, wherein thenut protrusion comprises: a protrusion body protruding from the parkingnut part and inserted into the cover hole; and a protrusion head formedat an end of the protrusion body, and contacted with the anti-rotationcover.
 15. The assembly device of claim 12, wherein the nut protrusionis formed of an elastic material, and forced to be inserted into thecover hole.
 16. The assembly device of claim 12, wherein theanti-rotation cover, the cover groove, and the cover hole are integratedwith each other.
 17. The assembly device of claim 12, wherein theanti-rotation part further comprises a cable fixing groove which isconcavely formed in the anti-rotation cover and to which the releasingcable is coupled.
 18. The assembly device of claim 17, wherein thereleasing cable is detachably coupled to the cable fixing groove. 19.The assembly device of claim 9, wherein the parking locking partcomprises: a locking body coupled to the braking cable part and insertedinto the parking nut part; and a locking head formed on the locking partso as to protrude in a lateral direction, and locked to the innersurface of the parking nut part.
 20. The assembly device of claim 19,wherein the parking nut part comprises: a nut body through which thebraking cable is passed, of which the outside is formed in a polygonalshape, and of which the inside is screw-coupled to the first couplingpart; and a locking protrusion protruding from the inner surface of thenut body, and locked to the locking head.